clem! Posted March 29, 2011 Report Posted March 29, 2011 (edited) hi, I don't want use my MIDIbox SID any longer with two powersupplies. I've found a Switching-PSU from an external harddrive with 12V and 5V. Is it possible (secure and without humming) to place those connections behind the regulators 7812 and 7805? Will the power be stable enough or is it better to remove them and to solder in bridges there and connect the new psu at the power connectors? best regards clem! Edited March 29, 2011 by clem!
m00dawg Posted March 29, 2011 Report Posted March 29, 2011 If it were me, I would likely steer clear of the hard-drive PSU. You don't know it's switching frequency (unless you're lucky and they put it on the label along with the wattage) and many of them use annoying connectors that may make finding a replacement difficult. Instead, I would have a look at thread as it is one of the most in-depth PSU discussions I have found on the forums, and it's fairly recent. It does discuss some switching PSU options as well if a switcher is what you want to go with, though there are quite a few linear options discussed as well. It's lengthy, but a very good read and may help you decide what to do.
Flemming Posted March 29, 2011 Report Posted March 29, 2011 If it were me, I would likely steer clear of the hard-drive PSU. +1
clem! Posted March 29, 2011 Author Report Posted March 29, 2011 Thank you. Okay - next time I use the search function ;-) Best regards
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